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Evgesh-ka [11]
3 years ago
12

PLEASE HELP ASAP!!!!!! What should each experiment only have one of? variable or constant

Physics
2 answers:
d1i1m1o1n [39]3 years ago
4 0
Variable - meaning one element, feature or factor able to change
slega [8]3 years ago
3 0

Answer:

the answer should be a constant

hope this helps!!

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A 10 V battery is connected to a voltage divider circuit
Svetradugi [14.3K]

Answer:

a) C. 7.5 V

b) A. 2.5 V

Explanation:

First, we find the total resistance of the circuit. A voltage divider circuit is a series circuit. Therefore, its total resistance will be the sum of individual resistances:

R = R_{1}+R_{2}\\R = 100\ \Omega + 300\ \Omega\\R = 400\ \Omega\\

a)

Now, we will apply the voltage divider rule on this circuit to find the voltage across the 300 Ω Resistor (R₂):

V_{2} = R_{2}\frac{V}{R}\\\\V_{2} = (300\ \Omega)\frac{10\ V}{400\ \Omega}\\\\

V₂ = 7.5 V

Therefore, the correct option is:

<u>C. 7.5 V</u>

<u></u>

b)

Now, the voltage across the 100 Ω Resistor (R₁) will be:

V = V_{1}+V_{2}\\V_{1} = V-V_{2}\\V_{1} = 10\ V - 7.5\ V\\V_{1}=2.5\ V

Therefore,the correct option is:

<u>A. 2.5 V</u>

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